package com.li.service;

import com.alibaba.fastjson.JSON;
import com.li.DTO.Content;
import com.li.utils.HTMLParseUtil;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchRequestBuilder;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.TermQueryBuilder;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.naming.directory.SearchResult;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Service
public class ContentService {

    @Autowired
    RestHighLevelClient restHighLevelClient;


    //1.解析数据放入es 索引中

    public Boolean parseContent(String keyWords) throws Exception {
        List<Content> contents = new HTMLParseUtil().parseJD(keyWords);
        new Content().setImg("1").setPrice("1").setTitle("111");
        //2.把查询出来的数据放入es 中
        BulkRequest bulkRequest = new BulkRequest();
        bulkRequest.timeout("2m");
        for (int i = 0; i < contents.size(); i++) {
            bulkRequest.add(
                    new IndexRequest("jd_goods")
                            .source(JSON.toJSONString(contents.get(i)), XContentType.JSON));
        }

        //todo

        BulkResponse bulk = restHighLevelClient.bulk(bulkRequest, RequestOptions.DEFAULT);

        return !bulk.hasFailures();
    }
    //2.获取数据实现搜索功能

    public List<Map<String, Object>> searchPage(String keywords, int pageNo, int pageSize) throws IOException {
        if (pageNo <= 1) {
            pageNo = 1;
        }
        //条件搜索
        SearchRequest searchRequest = new SearchRequest("jd_goods");
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();

        //分页
        sourceBuilder.from(pageNo);
        sourceBuilder.size(pageSize);

        //精准匹配
        TermQueryBuilder title = QueryBuilders.termQuery("title", keywords);
        sourceBuilder.query(title);
        sourceBuilder.timeout(new TimeValue(60, TimeUnit.SECONDS));


        //执行搜索
        searchRequest.source(sourceBuilder);
        SearchResponse searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);

        //解析结果
        ArrayList<Map<String, Object>> list = new ArrayList<>();
        for (SearchHit documentFields : searchResponse.getHits().getHits()) {

            list.add(documentFields.getSourceAsMap());

        }
        return list;
    }

}
